Improvement in adjustable attachments for door-springs



C. E. MILLER. ADJUSTABLE ATTACHMENT FOR DOOR-SPRINGS. No. 172,887.Patented Fb.1,187 6.

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UNITE STATES CHARLES E. MILLER, OF INDIANAPOLIS, INDIANA.

IMPROVEMENT IN ADJUSTABLE ATTACHMENTS FOR DOOR- SPRINGS.

Specification forming part of Letters Patent No. 172,887, dated February1, 1876; application filed January 3, 1876.

To all whom it may concern:

Be it known that 1, CHARLES of Indianapolis, county of Marion, State ofIndiana, have invented certain new and useful Improvements in theAttachments of Rubber-Tube Door-Springs, that are secured to doors anddoor-frames, whereby a useful and readily-adjustable door-springisobtained, of

which thefollowirg is a description, reference being had to theaccompanying drawings.

My invention consists of an adjustable piece constructed with anextension at one end, which is perforated with a series of holes, andprovided at the other end with a ball or conical plug, the extensionpart bein g inserted in holes formed at the end of the case, which issecured to the door, and held in any required position by means of thepin and pin-holes in the case, and extension part of the adjustablepiece.

Figure 1 represents-a top view of a door, showing the relative positionof each piece used as a door-spring. Fig. 2 is an enlarged side view ofthe door-spring. Fig. 3 is a front View of the curved hinged arm.- Fig.4 is a sectional view of the hook that operates in the fork of thecurved arm, and also shows the manner in which the rubber tube issecured on the ball or conical plug of the hook. Fig. 5 is a sectionalview of the adjustable end which operates in the case, that is securedto the door, and also shows the mannerof securin g the rubber tube tothe ball or conical plug. Fig. 6 is a sectional view of the case that issecured to the door. Fig. 7 isa top view of the same. I

In the drawings, A represents a door, hinged at O to the frame B, andshows the relative arrangement of the curved arm D, rubbertube spring E,adjustable piece F, and case G, as attached thereto to form adoor-spring. The curved arm D is formed with a fork and wrist-pin, 0, asshown in Fig. 3, in which the E. MILLER,

loop 0 of the hook L operates as a hinge, to allow the rubber spring toalways have a straight line at any position in which the door may stand.The other end of the piece, with the hook L, is formed with a ball orconical plug, K, over which the end of the rubber tube E is drawn andsecured there by the rubber band J, as shown in the drawings, whicheffactually prevents the rubber 'tube E from being l d on of the ball orconical plug 1" and makes a firm fastening. The other end of the rubbertube E is secured, in like manner, to the ball or conical plug K of theadjustable piece F, which has an extension, F,'that is perforated with anumber of holes, H", and is inserted in the opening 1? at the end of thecase G, and held in any desired hole H by means of the pin H passingthrough the hole H in the case G,'as shown in the drawings.

I am aware that rubber tubes have been used before as door-springs, andas such I do not claim it.

What I claim as new, and wish to secure by Letters Patent, is

In a door-spring, the adjustable piece F, constructed with the extensionF at one end, which'extension is perforated with a series of holes, E,and also provided with a ball or conical plug, K, at the other end, incom-bination with the case Gr, arranged with openings P at the ends, toreceive the extension F,

and provided with a pin-hole, H, to receive the pin H and hold theadjustable pieceF, in the manner and for the purposes specified and 'setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES E. MILLER.

Witnesses: E. O. FRINK, S. O. FRINK.

PATENT (Darren. j

